thanks for the info. My speed estimate is fairly ballpark--I'm not taking my overall average either. (Strava link didn't work--looks like I need login info) I think 12-14 is just a typical speed range of mine on somewhat level, or slightly inclined, ground.

Good to know that there may not be any other TE-ers in marin/sonoma. I didn't know about studio velo's group(s), but I do check the SRCC's (and marin cyclists) calendar whenever i'm thinking about doing a longer ride. I think I'm really only an "AB" pace though, and the AB rides often don't go above 40 miles, and I will definitely be needing to do longer than that in a few months. (There appears to be a rare exception with the marin cyclists this weekend, plus an interesting-looking option with the SRCC! But I might just stick to easing myself back in with a shorter ride closer to home this weekend...haven't decided yet.)